The project area is characterized by highforest cover(5800ha) mainly consisting in beech treesand scrub. Are also represented artificial reforestationand conifersdominated byspruce, larch andexotic conifers.Where morphological and pedological conditionsare more favorable evolution towardsstableplant communities, with a prevalence ofbeech, are common. Within the project area a limited extension relict population of white spruce survive inAlpeCusogna. Pasturesand grasslands play an important rolefor their remarkable extension too.

With regard to the land tenure aspect, the pSIC is largelystate propertymanaged by Piedmont Region.An individual private citizens owns an important areas composed by different parcels.

ValSessera,thanks to the particularmicroclimatic conditionsand themarginal positionwith respectto the Alps,hosts many speciesof flora andfaunauniquein all thePiedmont Alps.Thesehavefoundarefugeduring glaciationsallowingthe presenceofpopulations isolated from the main range of the species orthe presenceofsteno-endemic populations,themostof which is theCaraboof Olimpia(Carabusolympiae).

In the site have been identified some environments of commmunity importance, such as thealluvialforestsofalder(Alnusincana)andmatgrass grasslandwithabundance and varieties ofspecies.

The florais very richwith about 800entitiesreported, 32 of whichareprotected underRegional Law32/82, 6are listed in theItalianor regionalRed List,Aspleniumadulterinumis insertedin the AII.IIandIVof the Habitats Directive(DH).It is also remarkable the richvariety of fungi.Among the species ofCommunity interest,one thattakes on greatervalueis certainly thecaraboof Olympia, itsbeautyand its rarityled manyentomologistsand collectorstoindiscriminately hunting up to threatening it ofextinction.Among the invertebratesstandsalsothe presenceofFalkneriaCamerani,one of the rarestItaliansmolluscs,andthe beetlecurculionidae Neoplinthusdentimanus.

ThediurnalLepidopteraare distinguished byapopulationconsisting of alarge number ofspecies, some of whicharesubject tostrict protectionaccording toDH.